Moated site, Lismacool, Co. Roscommon

Moated site, Lismacool, Co. Roscommon

The moated site at Lismacool in County Roscommon offers a glimpse into medieval Ireland's defensive landscape.

Moated site, Lismacool, Co. Roscommon

Originally recorded on Ordnance Survey maps from 1837 and 1914 as a circular embanked enclosure measuring roughly 40 metres across, this earthwork sits on a south-facing slope in the rural countryside. When surveyed in 1956, the site appeared as a rectangular area approximately 30 metres square, defined by modest earthen banks standing between 0.4 and 0.9 metres high. These banks were accompanied by outer fosses, or defensive ditches, about 5.5 metres wide, with additional external banks measuring 3 metres in width on all sides except the north, where an east-west field bank marked the boundary.

Time and agricultural activity have taken their toll on this medieval earthwork. By 1972, archaeologist Gannon reported that no visible traces of the structure remained above ground. However, careful observation reveals that the site hasn’t completely vanished; it can still be detected as a circular, grass-covered area surrounded by a distinctive band of rushes, 3 to 4 metres wide, marking where the old moat once held water. This subtle vegetation pattern serves as a natural memorial to the site’s former purpose.



The location of this moated site wasn’t chosen at random. Another rath, a type of ringfort common in early medieval Ireland, lies just 110 metres to the northwest, suggesting this area held strategic or social importance for centuries. Moated sites like this one typically date from the Anglo-Norman period (late 12th to 14th centuries) and often marked the homes of wealthy landowners or minor nobility who needed both security and status symbols in the Irish countryside. While the earthworks may have faded, the site continues to tell its story through the landscape’s subtle clues.

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Gannon, A. 1972 Archaeological survey of Roscommon. Unpublished typed index cards prepared for Roscommon County Council. SMR file – Sites and monuments record files in the National Monuments Service, Department of Housing, Local Government and Heritage.
Lismacool, Co. Roscommon
53.85062978, -8.25138912
53.85062978,-8.25138912
Lismacool 
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